Question 1

How to set up Eta for server-side rendering in Node.js?

Accepted Answer

Import the Eta class, configure views directory, and use the render method with template paths and data; the README provides a basic example with path joining for file handling. For frameworks like Koa, community integrations like @cedx/koa-eta are available but require separate setup.

Question 2

Eta vs EJS: which is better for performance?

Accepted Answer

Eta is optimized for speed and minimal footprint (~3.5 KB vs EJS's larger size), with benchmarks likely favoring Eta in resource-constrained environments. However, EJS has a more mature ecosystem and broader community support, so the choice depends on trade-offs between performance and tooling availability.

Question 3

How to use layouts in Eta templates?

Accepted Answer

Eta supports layout management through configuration and template inheritance; refer to the official documentation for examples on defining base layouts and extending them in child templates. This feature is highlighted in the README as a powerful aspect of its templating capabilities.

Question 4

Can Eta templates be precompiled for better performance?

Accepted Answer

Yes, Eta supports precompilation to cache templates and improve render speed, especially in high-traffic applications. The README mentions precompilation as a key feature, and the API includes methods for compiling templates ahead of time.

Question 5

What plugins are available for Eta?

Accepted Answer

Eta's plugin system allows custom extensions, but the ecosystem is growing with community contributions; check the GitHub repository or documentation for listed plugins, though availability is limited compared to larger engines like Nunjucks.

Question 6

How to handle async data rendering in Eta?

Accepted Answer

Eta supports async rendering natively, allowing templates to await promises within tags; the README credits EJS for async inspiration, and examples in the documentation show how to integrate asynchronous operations seamlessly.

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